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Diffstat (limited to 'ffmpeg/libavcodec/sunrastenc.c')
-rw-r--r--ffmpeg/libavcodec/sunrastenc.c227
1 files changed, 0 insertions, 227 deletions
diff --git a/ffmpeg/libavcodec/sunrastenc.c b/ffmpeg/libavcodec/sunrastenc.c
deleted file mode 100644
index a55e3d4..0000000
--- a/ffmpeg/libavcodec/sunrastenc.c
+++ /dev/null
@@ -1,227 +0,0 @@
-/*
- * Sun Rasterfile (.sun/.ras/im{1,8,24}/.sunras) image encoder
- * Copyright (c) 2012 Aneesh Dogra (lionaneesh) <lionaneesh@gmail.com>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "avcodec.h"
-#include "bytestream.h"
-#include "internal.h"
-#include "sunrast.h"
-
-typedef struct SUNRASTContext {
- PutByteContext p;
- int depth; ///< depth of pixel
- int length; ///< length (bytes) of image
- int type; ///< type of file
- int maptype; ///< type of colormap
- int maplength; ///< length (bytes) of colormap
- int size;
-} SUNRASTContext;
-
-static void sunrast_image_write_header(AVCodecContext *avctx)
-{
- SUNRASTContext *s = avctx->priv_data;
-
- bytestream2_put_be32u(&s->p, RAS_MAGIC);
- bytestream2_put_be32u(&s->p, avctx->width);
- bytestream2_put_be32u(&s->p, avctx->height);
- bytestream2_put_be32u(&s->p, s->depth);
- bytestream2_put_be32u(&s->p, s->length);
- bytestream2_put_be32u(&s->p, s->type);
- bytestream2_put_be32u(&s->p, s->maptype);
- bytestream2_put_be32u(&s->p, s->maplength);
-}
-
-static void sunrast_image_write_image(AVCodecContext *avctx,
- const uint8_t *pixels,
- const uint32_t *palette_data,
- int linesize)
-{
- SUNRASTContext *s = avctx->priv_data;
- const uint8_t *ptr;
- int len, alen, x, y;
-
- if (s->maplength) { // palettized
- PutByteContext pb_r, pb_g;
- int len = s->maplength / 3;
-
- pb_r = s->p;
- bytestream2_skip_p(&s->p, len);
- pb_g = s->p;
- bytestream2_skip_p(&s->p, len);
-
- for (x = 0; x < len; x++) {
- uint32_t pixel = palette_data[x];
-
- bytestream2_put_byteu(&pb_r, (pixel >> 16) & 0xFF);
- bytestream2_put_byteu(&pb_g, (pixel >> 8) & 0xFF);
- bytestream2_put_byteu(&s->p, pixel & 0xFF);
- }
- }
-
- len = (s->depth * avctx->width + 7) >> 3;
- alen = len + (len & 1);
- ptr = pixels;
-
- if (s->type == RT_BYTE_ENCODED) {
- uint8_t value, value2;
- int run;
-
- ptr = pixels;
-
-#define GET_VALUE y >= avctx->height ? 0 : x >= len ? ptr[len-1] : ptr[x]
-
- x = 0, y = 0;
- value2 = GET_VALUE;
- while (y < avctx->height) {
- run = 1;
- value = value2;
- x++;
- if (x >= alen) {
- x = 0;
- ptr += linesize, y++;
- }
-
- value2 = GET_VALUE;
- while (value2 == value && run < 256 && y < avctx->height) {
- x++;
- run++;
- if (x >= alen) {
- x = 0;
- ptr += linesize, y++;
- }
- value2 = GET_VALUE;
- }
-
- if (run > 2 || value == RLE_TRIGGER) {
- bytestream2_put_byteu(&s->p, RLE_TRIGGER);
- bytestream2_put_byteu(&s->p, run - 1);
- if (run > 1)
- bytestream2_put_byteu(&s->p, value);
- } else if (run == 1) {
- bytestream2_put_byteu(&s->p, value);
- } else
- bytestream2_put_be16u(&s->p, (value << 8) | value);
- }
-
- // update data length for header
- s->length = bytestream2_tell_p(&s->p) - 32 - s->maplength;
- } else {
- for (y = 0; y < avctx->height; y++) {
- bytestream2_put_buffer(&s->p, ptr, len);
- if (len < alen)
- bytestream2_put_byteu(&s->p, 0);
- ptr += linesize;
- }
- }
-}
-
-static av_cold int sunrast_encode_init(AVCodecContext *avctx)
-{
- SUNRASTContext *s = avctx->priv_data;
-
- switch (avctx->coder_type) {
- case FF_CODER_TYPE_RLE:
- s->type = RT_BYTE_ENCODED;
- break;
- case FF_CODER_TYPE_RAW:
- s->type = RT_STANDARD;
- break;
- default:
- av_log(avctx, AV_LOG_ERROR, "invalid coder_type\n");
- return AVERROR(EINVAL);
- }
-
- s->maptype = RMT_NONE;
- s->maplength = 0;
-
- switch (avctx->pix_fmt) {
- case AV_PIX_FMT_MONOWHITE:
- s->depth = 1;
- break;
- case AV_PIX_FMT_PAL8 :
- s->maptype = RMT_EQUAL_RGB;
- s->maplength = 3 * 256;
- case AV_PIX_FMT_GRAY8:
- s->depth = 8;
- break;
- case AV_PIX_FMT_BGR24:
- s->depth = 24;
- break;
- default:
- return AVERROR_BUG;
- }
- s->length = avctx->height * (FFALIGN(avctx->width * s->depth, 16) >> 3);
- s->size = 32 + s->maplength +
- s->length * (s->type == RT_BYTE_ENCODED ? 2 : 1);
-
- return 0;
-}
-
-static int sunrast_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
- const AVFrame *frame, int *got_packet_ptr)
-{
- SUNRASTContext *s = avctx->priv_data;
- int ret;
-
- if ((ret = ff_alloc_packet2(avctx, avpkt, s->size)) < 0)
- return ret;
-
- bytestream2_init_writer(&s->p, avpkt->data, avpkt->size);
- sunrast_image_write_header(avctx);
- sunrast_image_write_image(avctx, frame->data[0],
- (const uint32_t *)frame->data[1],
- frame->linesize[0]);
- // update data length in header after RLE
- if (s->type == RT_BYTE_ENCODED)
- AV_WB32(&avpkt->data[16], s->length);
-
- *got_packet_ptr = 1;
- avpkt->flags |= AV_PKT_FLAG_KEY;
- avpkt->size = bytestream2_tell_p(&s->p);
- return 0;
-}
-
-static av_cold int sunrast_encode_close(AVCodecContext *avctx)
-{
- av_frame_free(&avctx->coded_frame);
- return 0;
-}
-
-static const AVCodecDefault sunrast_defaults[] = {
- { "coder", "rle" },
- { NULL },
-};
-
-AVCodec ff_sunrast_encoder = {
- .name = "sunrast",
- .long_name = NULL_IF_CONFIG_SMALL("Sun Rasterfile image"),
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_SUNRAST,
- .priv_data_size = sizeof(SUNRASTContext),
- .init = sunrast_encode_init,
- .close = sunrast_encode_close,
- .encode2 = sunrast_encode_frame,
- .defaults = sunrast_defaults,
- .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_BGR24,
- AV_PIX_FMT_PAL8,
- AV_PIX_FMT_GRAY8,
- AV_PIX_FMT_MONOWHITE,
- AV_PIX_FMT_NONE },
-};
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